func BondArcLength() float64 · VerticalRisePerBond returns Δz_bond

Read the equation

This relation defines VerticalRisePerBond returns Δz_bond in the source section “func BondArcLength() float64 · VerticalRisePerBond returns Δz_bond”. It specifies the displayed relationship between the named quantities or parameters. Its interpretation depends on the source’s stated variables and conditions; this record does not assign an unprovided physical or cognitive meaning to them.

Terms & definitions

The recovered passage does not supply a separate symbol table. Read the source context for the notation used in this version; familiar letters may carry different meanings in other builds.

How it works

1. Read VerticalRisePerBond returns Δz_bond as the quantity being defined or updated by this relation.

2. Substitute the source-defined variables or recorded values and follow the displayed arithmetic and indexing exactly.

3. Use this version’s variable definitions and update order. The same symbol may be assigned a different meaning in another build.

Assumptions & limits

• This source expression was recovered from the pinned code revision. Its presence does not establish that the associated program was built, run, or scientifically validated.

Original context

}

// BondArcLength returns s_bond = 2πr/10.6 = 0.593 nm per bp
func BondArcLength() float64 {
	return 2.0 * math.Pi * HelixRadius / BasePairsPerTurn
}

// VerticalRisePerBond returns Δz_bond = P/44 = 0.0819 nm
func VerticalRisePerBond() float64 {
	return Pitch / TotalBonds
}

// AdjacentBondLength returns L_adj = √[2r²(1 - cos(2π/10.6)) + h²] = 0.54 nm
func AdjacentBondLength() float64 {
	cosTerm := 1.0 - math.Cos(TwistAngleRad)
	return math.Sqrt(2.0*HelixRadius*HelixRadius*cosTerm + RisePerBP*RisePerBP)
}

VerticalRisePerBond returns Δz_bond = P/44 = 0.0819 nm

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